D6: Changed decorator and swapping to LayerView

cura/BlockSlicingDecorator.py

@@ -0,0 +1,9 @@
+from UM.Scene.SceneNodeDecorator import SceneNodeDecorator
+
+
+class BlockSlicingDecorator(SceneNodeDecorator):
+    def __init__(self):
+        super().__init__()
+        
+    def isBlockSlicing(self):
+        return True

cura/CuraApplication.py

@@ -29,6 +29,7 @@ from UM.Operations.SetTransformOperation import SetTransformOperation
 from UM.Operations.TranslateOperation import TranslateOperation
 from cura.SetParentOperation import SetParentOperation
 from cura.SliceableObjectDecorator import SliceableObjectDecorator
+from cura.BlockSlicingDecorator import BlockSlicingDecorator
 
 from UM.Settings.SettingDefinition import SettingDefinition, DefinitionPropertyType
 from UM.Settings.ContainerRegistry import ContainerRegistry
@@ -136,6 +137,9 @@ class CuraApplication(QtApplication):
             }
         )
 
+        self._currently_loading_files = []
+        self._non_sliceable_extensions = []
+
         self._machine_action_manager = MachineActionManager.MachineActionManager()
         self._machine_manager = None    # This is initialized on demand.
         self._setting_inheritance_manager = None
@@ -290,8 +294,6 @@ class CuraApplication(QtApplication):
 
             self._recent_files.append(QUrl.fromLocalFile(f))
 
-        self.changeLayerViewSignal.connect(self.changeToLayerView)
-
     def _onEngineCreated(self):
         self._engine.addImageProvider("camera", CameraImageProvider.CameraImageProvider())
 
@@ -538,15 +540,6 @@ class CuraApplication(QtApplication):
 
             qmlRegisterType(QUrl.fromLocalFile(path), "Cura", 1, 0, type_name)
 
-    changeLayerViewSignal = pyqtSignal()
-
-    def changeToLayerView(self):
-        self.getController().setActiveView("LayerView")
-        view = self.getController().getActiveView()
-        view.resetLayerData()
-        view.setLayer(999999)
-        view.calculateMaxLayers()
-
     def onSelectionChanged(self):
         if Selection.hasSelection():
             if self.getController().getActiveTool():
@@ -594,11 +587,11 @@ class CuraApplication(QtApplication):
         scene_bounding_box = None
         should_pause = False
         for node in DepthFirstIterator(self.getController().getScene().getRoot()):
-            if type(node) is not SceneNode or (not node.getMeshData() and node.callDecoration("isSliceable") is None):
+            if type(node) is not SceneNode or (not node.getMeshData() and not node.callDecoration("isBlockSlicing")):
                 continue
-            if node.callDecoration("isSliceable") is False:
+            if node.callDecoration("isBlockSlicing"):
                 should_pause = True
-            gcode_list = node.callDecoration("gCodeList")
+            gcode_list = node.callDecoration("getGCodeList")
             if gcode_list is not None:
                 self.getController().getScene().gcode_list = gcode_list
 
@@ -740,7 +733,7 @@ class CuraApplication(QtApplication):
         for node in DepthFirstIterator(self.getController().getScene().getRoot()):
             if type(node) is not SceneNode:
                 continue
-            if (not node.getMeshData() and node.callDecoration("isSliceable") is None) and not node.callDecoration("isGroup"):
+            if (not node.getMeshData() and not node.callDecoration("isBlockSlicing")) and not node.callDecoration("isGroup"):
                 continue  # Node that doesnt have a mesh and is not a group.
             if node.getParent() and node.getParent().callDecoration("isGroup"):
                 continue  # Grouped nodes don't need resetting as their parent (the group) is resetted)
@@ -1036,9 +1029,6 @@ class CuraApplication(QtApplication):
     def log(self, msg):
         Logger.log("d", msg)
 
-    _loading_files = []
-    non_sliceable_extensions = []
-
     @pyqtSlot(QUrl)
     def readLocalFile(self, file):
         if not file.isValid():
@@ -1047,16 +1037,16 @@ class CuraApplication(QtApplication):
         scene = self.getController().getScene()
 
         for node in DepthFirstIterator(scene.getRoot()):
-            if node.callDecoration("isSliceable") is False:
+            if node.callDecoration("isBlockSlicing"):
                 self.deleteAll()
                 break
 
         f = file.toLocalFile()
         extension = os.path.splitext(f)[1]
         filename = os.path.basename(f)
-        if len(self._loading_files) > 0:
+        if len(self._currently_loading_files) > 0:
             # If a non-slicable file is already being loaded, we prevent loading of any further non-slicable files
-            if extension.lower() in self.non_sliceable_extensions:
+            if extension.lower() in self._non_sliceable_extensions:
                 message = Message(
                     self._i18n_catalog.i18nc("@info:status",
                                        "Only one G-code file can be loaded at a time. Skipped importing {0}",
@@ -1064,8 +1054,8 @@ class CuraApplication(QtApplication):
                 message.show()
                 return
             # If file being loaded is non-slicable file, then prevent loading of any other files
-            extension = os.path.splitext(self._loading_files[0])[1]
-            if extension.lower() in self.non_sliceable_extensions:
+            extension = os.path.splitext(self._currently_loading_files[0])[1]
+            if extension.lower() in self._non_sliceable_extensions:
                 message = Message(
                     self._i18n_catalog.i18nc("@info:status",
                                        "Can't open any other file if G-code is loading. Skipped importing {0}",
@@ -1073,8 +1063,8 @@ class CuraApplication(QtApplication):
                 message.show()
                 return
 
-        self._loading_files.append(f)
-        if extension in self.non_sliceable_extensions:
+        self._currently_loading_files.append(f)
+        if extension in self._non_sliceable_extensions:
             self.deleteAll()
 
         job = ReadMeshJob(f)
@@ -1084,18 +1074,22 @@ class CuraApplication(QtApplication):
     def _readMeshFinished(self, job):
         node = job.getResult()
         filename = job.getFileName()
-        self._loading_files.remove(filename)
+        self._currently_loading_files.remove(filename)
 
         if node != None:
             node.setSelectable(True)
             node.setName(os.path.basename(filename))
 
             extension = os.path.splitext(filename)[1]
-            if extension.lower() in self.non_sliceable_extensions:
-                self.changeLayerViewSignal.emit()
-                sliceable_decorator = SliceableObjectDecorator()
-                sliceable_decorator.setSliceable(False)
-                node.addDecorator(sliceable_decorator)
+            if extension.lower() in self._non_sliceable_extensions:
+                self.getController().setActiveView("LayerView")
+                view = self.getController().getActiveView()
+                view.resetLayerData()
+                view.setLayer(9999999)
+                view.calculateMaxLayers()
+
+                block_slicing_decorator = BlockSlicingDecorator()
+                node.addDecorator(block_slicing_decorator)
             else:
                 sliceable_decorator = SliceableObjectDecorator()
                 node.addDecorator(sliceable_decorator)
@@ -1107,3 +1101,5 @@ class CuraApplication(QtApplication):
 
             scene.sceneChanged.emit(node)
 
+    def addNonSliceableExtension(self, extension):
+        self._non_sliceable_extensions.append(extension)

cura/GCodeListDecorator.py

@@ -6,7 +6,7 @@ class GCodeListDecorator(SceneNodeDecorator):
         super().__init__()
         self._gcode_list = []
         
-    def gCodeList(self):
+    def getGCodeList(self):
         return self._gcode_list
 
     def setGCodeList(self, list):

cura/NonSliceableObjectDecorator.py

@@ -0,0 +1,9 @@
+from UM.Scene.SceneNodeDecorator import SceneNodeDecorator
+
+
+class NonSliceableObjectDecorator(SceneNodeDecorator):
+    def __init__(self):
+        super().__init__()
+        
+    def isNonSliceable(self):
+        return True

cura/SliceableObjectDecorator.py

@@ -1,14 +1,9 @@
 from UM.Scene.SceneNodeDecorator import SceneNodeDecorator
 
 
-## Simple decorator to indicate a scene node is sliceable or not.
 class SliceableObjectDecorator(SceneNodeDecorator):
     def __init__(self):
         super().__init__()
-        self._sliceable = True
         
     def isSliceable(self):
-        return self._sliceable
-
-    def setSliceable(self, sliceable):
-        self._sliceable = sliceable
+        return True

plugins/GCodeReader/__init__.py

@@ -28,6 +28,6 @@ def getMetaData():
     }
 
 def register(app):
-    app.non_sliceable_extensions.append(".gcode")
-    app.non_sliceable_extensions.append(".g")
+    app.addNonSliceableExtension(".gcode")
+    app.addNonSliceableExtension(".g")
     return { "mesh_reader": GCodeReader.GCodeReader() }

plugins/LayerView/LayerPass.py

@@ -49,7 +49,7 @@ class LayerPass(RenderPass):
             if isinstance(node, ToolHandle):
                 tool_handle_batch.addItem(node.getWorldTransformation(), mesh = node.getSolidMesh())
 
-            elif isinstance(node, SceneNode) and (node.getMeshData() or node.callDecoration("isSliceable") is False) and node.isVisible():
+            elif isinstance(node, SceneNode) and (node.getMeshData() or node.callDecoration("isBlockSlicing")) and node.isVisible():
                 layer_data = node.callDecoration("getLayerData")
                 if not layer_data:
                     continue